The Russian Thistle Its Introduction And Spread in California With Laws And M
The Russian Thistle Its Introduction And Spread in California With Laws And M
California State Commission of Horticulture
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Dewey, Assistant Botanist of the U. S. Department of Agriculture, estimated that the cost to the farmers of Dakota alone in loss of crops was over $2, 000, 000 for that season. In 1893 this estimate was increased for the West to from $3, 000, 000 to $5, 000, 000, and this has since been largely augmented by the greatly increased area subju- gated by the pest. From a circular of Prof. L. H. Dewey, Assistant Botanist of the U. S. Department of Agriculture, treating on the Russian thistle, we take... the following : "The injury to crops is of course the most important item in the damage caused by the Russian thistle. It takes complete possession of the land, crowding out other plants. Flax, wheat, rye, barley, and oats all suffer from its effects, not only in the reduction of the crop but in the lower grade of that which is harvested. Corn, potatoes, vegetables, and, in fact, nearly all cultivated crops are injured more or less, pro- portionately to their lack of care and cultivation. "The spiny character, added to the rigid, bushy habit of the plant, makes it one of the most disagreeable of weeds to handle.
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